these are commonly known a 3 face mugs. there are 2 common sizes the regular and the slim. there is also the fully glazed version that does not have the usual lip on the top.
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Tiki Mug Design
Islander Three Face Bucket Standard Size
in 61 collections
This bucket from the Islander in Stockton, California is the common three-face tiki design, with tan unglazed sides and a brown glazed lip and interior.